CN106758890B - Campshed box culvert structure and its construction method - Google Patents
Campshed box culvert structure and its construction method Download PDFInfo
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- CN106758890B CN106758890B CN201610994413.5A CN201610994413A CN106758890B CN 106758890 B CN106758890 B CN 106758890B CN 201610994413 A CN201610994413 A CN 201610994413A CN 106758890 B CN106758890 B CN 106758890B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
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Abstract
The invention discloses campshed box culvert structure and its construction method, the campshed box culvert includes side column campshed, high-pressure rotary jet grouting pile, side Guan Liang, U-shaped bottom plate and top plate, side column campshed is divided into two groups, symmetrically it is laid in both sides, high-pressure rotary jet grouting pile is set to form water-stop curtain between the campshed of side column two-by-two per side, side Guan Liang is provided with two, respectively above two groups of side column campsheds, U-shaped bottom plate is cast between two groups of side column campsheds, U-shaped sidewall of the bottom plate is connected with side column campshed inwall, and side Guan Liang top pours integrally with top plate.The invention also discloses the construction method of said structure, retaining piles first, then bottom plate and top plate are poured using anti-excavation construction, reduce construction link, the temporary structure of the campshed supporting of script is become permanent structure by the present invention, the waste of engineering structure is avoided, effectively shortens the duration, reduces construction cost.
Description
Technical field
The present invention relates to traffic and hydraulic engineering technical field, specially a kind of special box culvert structure and its construction party
Method.
Background technology
Box culvert belongs to one kind of culvert, is generally used to draining, remarkable and vehicle.Box culvert be divided into as needed single-hole box culvert and
Multiple box culvert.As shown in figure 1, frame structure of the existing single-hole box culvert for closing, chief component have armored concrete culvert
Body 1', aileron 2', concrete foundation 3', movement joint 4' etc..As shown in Fig. 2 existing multiple box culvert and Fig. 1 single-hole box culvert knot
Structure is similar, contains in concrete and is provided with multiple culverts on body 1', wall 5 ' is provided between culvert.Box culvert construct typically using cast-in-place,
Interim foundation ditch campshed supporting is set in the groove excavated, bottom is set, pours a layer concrete bed course, then will process
The colligation of reinforcing bar scene, branch internal model and external mold, larger box culvert typically first pour the latter half of bottom plate and side wall, then colligation side
Wall top and roof steel bar, external mold in good is propped up, pours side wall top half and top plate.Treat that concrete reaches the intensity of design requirement
Form removal, in box culvert both sides while backfill.The foundation ditch campshed supporting of the box culvert structure belongs to temporary structure, and cost is high, and box culvert pours
It is just discarded after the completion of building.And the structure is unsuitable for using on the soft base of super thick, soft base is blocked up, and inequality easily occurs in box culvert bottom
Even settlement issues.
The content of the invention
It is an object of the invention to provide a kind of campshed box culvert structure and its construction method, eliminates load at the top of box culvert and passes to
Bottom, the problem of causing bottom differential settlement；When building on deep soft base, reduce box culvert bottom and carry out at special foundation
The content and program of reason；Improve box culvert holistic resistant behavior.To achieve the above object, the present invention uses following technical scheme：
Campshed box culvert structure, including side column campshed, high-pressure rotary jet grouting pile, side Guan Liang, U-shaped bottom plate and top plate, described side column
Campshed is divided into two groups, is symmetrically laid in both sides, sets high-pressure rotary jet grouting pile to form water-stop curtain between the campshed of side column two-by-two per side,
Described side Guan Liang is provided with two, and respectively above two groups of side column campsheds, described U-shaped bottom plate is cast in two groups of side column campsheds
Between, U-shaped sidewall of the bottom plate is connected with side column campshed inwall, and described side Guan Liang top pours integrally with top plate.
In one embodiment, in addition to some groups of center pillars and Guan Liang in several, some groups of described center pillars are located at two groups of sides
In the middle part of post campshed and parallel with side column campshed, Guan Liang is respectively arranged on above some groups of center pillars in several described, in described
Guan Liang top pours integrally with top plate.
Preferably, described side column campshed includes long poured pile and short poured pile, and 2 short fillings are laid between two root long poured piles
Stanchion, the supporting course of weathered rock formation or entrance with enough anchorage lengths, described short filling post in the insertion of described long poured pile
The height of stake is more than the depth of U-shaped bottom plate, and described high-pressure rotary jet grouting pile passes through bottom plate and mud bottom.
Preferably, the thickness of described U-shaped sidewall of the bottom plate is less than or equal to the half of the bottom thickness of U-shaped bottom plate.
Preferably, described top plate bottom is arch, and top plate and the thickness of slab of side Guan Liang and middle Guan Liang junction are more than remaining
Part thickness of slab.
Wherein, described U-shaped sidewall of the bottom plate and bottom are provided with linked network reinforcing bar and bottom plate dowel, institute with side column campshed junction
The side Guan Liang stated is provided with stirrup with top plate junction.
As a result of above-mentioned structure, the present invention has the advantages that：
The design concept that foundation pit supporting construction and permanent structure separate 1. the present invention breaks the normal procedure, by construction pit supporting knot
Structure is changed into box culvert permanent structure part, and the bottom plate of box culvert and top plate are separated, bottom slab stress is mitigated significantly so that this knot
The filled load of structure is transmitted to side Guan Liang/middle Guan Liang by top plate, has then been directly transmitted to side column campshed/center pillar, while bottom plate is adopted
It is connected with U-shape structure with side column campshed, has given full play to the stress advantage of side column campshed, the U-shaped bottom plate of box culvert need not be individually
Basement process, not only increase the globality of box culvert and decrease box culvert bottom ground processing cost.
2. multiple box culvert forms midfoot support by center pillar and middle Guan Liang, cancel the wall among culvert, top plate can be met
The arrangement of across footpath, reduce top plate thickness.
3. structure of the present invention has more practicality on the soft base of super thick, due to without basement process, avoid it is issuable not
The problem of uniform settlement.
The invention also discloses the construction method of said structure, comprise the following steps：
S1. side column campshed is constructed：Levelling of the land, line setting, side column campshed are divided into two groups, along the parallel cloth of Parallel to the flow direction
It is located on the position of foundation ditch, high-pressure rotary jet grouting pile is taken jumps hole and apply in batches, sets high pressure to revolve between each two side column campshed
Spray stake and form water-stop curtain；
S2. center pillar is constructed：Center pillar is arranged according to the across footpath demand of box culvert, center pillar uses poured pile, and center pillar is arranged in parallel in
Between two groups of side column campsheds；
S3. Guan Liang is constructed：The top of side column campshed and center pillar is cut, is located on same plane, is excavated to Guan Liang bottom,
Carry out side Guan Liang and the construction of middle Guan Liang, side Guan Liang are located above side column campshed, middle Guan Liang is located above center pillar, side Guan Liang and middle hat
The expansion joint arrangement of beam is consistent with top plate, reserved stirrup above side Guan Liang and middle Guan Liang；
S4. inner support is constructed：Between side Guan Liang and middle Guan Liang some inner supports are laid along perpendicular to water (flow) direction；
S5. excavation of foundation pit：Below excavation pit to U-shaped floor elevation；
S6.U type bottom slab concretings：The position of U-shaped bottom plate is determined, is planted in the delivery position of side column campshed and center pillar and bottom plate
Muscle, concrete bed course is first poured in bottom plate position, the bottom for then carrying out U-shaped bottom plate pours, and removes the silt soil between side column campshed, profit
Template, which is done, with side column campshed pours U-shaped sidewall of the bottom plate；
S7. top plate pours：Roof plate template is placed, Guan Liang, middle Guan Liang and roof plate template top pour top plate on side, make top plate
Entirety is formed with side Guan Liang and middle Guan Liang；
S8. roof plate template is removed, removes inner support, backfills earthing.
Wherein, side column campshed includes long poured pile and short poured pile in step S1, and 2 short fillings are laid between two root long poured piles
Stanchion, weathered rock formation in described long filling post insertion, described short poured pile are used for earth-retaining, and the height of short poured pile is more than U-shaped
The depth of bottom plate, described high-pressure rotary jet grouting pile pass through mud bottom.
Preferably, described concrete bed course is 10~15cm thickness C15 concrete bed courses, and the thickness of described U-shaped sidewall of the bottom plate is less than
Or the half of the bottom thickness equal to U-shaped bottom plate.
Preferably, described roof plate template is domed.
The construction method of the present invention has the advantages that：
1st, construction method of the present invention retaining piles/center pillar first, bottom plate and top plate is then poured using anti-excavation construction, subtracted
Construction link is lacked, the temporary structure of the campshed supporting of script is become into permanent structure, avoids the waste of engineering structure, effectively
Shorten the duration, reduce construction cost.
2nd, side column campshed is added high pressure the construction of rotary churning pile using long-short pile：Weathered rock formation in the insertion of long poured pile, in satisfaction
Portion's structural bearing capacity requirement；The height of short poured pile is more than the depth of U-shaped bottom plate, meets pattern foundation pit supporting structure requirement；The knot of long-short pile
It is long that conjunction greatly reduces stake, thus reduces and invest and saved the duration；High-pressure rotary jet grouting pile passes through mud bottom, forms sealing curtain
Curtain, has the function that sealing, at the same after wall can be prevented mud to forming grand role before wall.
3rd, it is template directly using side column campshed during U-shaped bottom slab concreting, by U-shaped bottom plate, side column campshed, center pillar, bar pouring
Build and be integral, U-shaped bottom slab stress is transmitted to side column campshed, center pillar, ensure the globality of box culvert structure, reduce box culvert bottom
Basement process expense.
Brief description of the drawings
Fig. 1 is the single-hole box culvert structural representation of background technology.
Fig. 2 is the multiple box culvert structural representation of background technology.
The dimensional structure diagram of Fig. 3 embodiment of the present invention one.
Fig. 4 is the floor map of the embodiment of the present invention one.
Fig. 5 is Fig. 4 schematic cross-sectional view.
Fig. 6 is the connection figure of U-shaped sidewall of the bottom plate and side column campshed.
Fig. 7 is Fig. 6 A-A diagrammatic cross-sections.
Fig. 8 is Fig. 6 B-B diagrammatic cross-sections.
Fig. 9 is the dimensional structure diagram of the embodiment of the present invention two.
Figure 10 is the view that inner support is constructed in embodiment two.
Figure 11 is the floor map of embodiment two.
Figure 12 is Figure 11 schematic cross-sectional view.
Figure 13 is the connection diagram of U-shaped bottom plate and center pillar.
Figure 14 is Figure 13 C-C diagrammatic cross-sections.
Primary clustering symbol description：
1：Side column campshed, 11：Long poured pile, 12：Short poured pile, 2：High-pressure rotary jet grouting pile, 3：Side Guan Liang, 4：U-shaped bottom plate,
41：U-shaped sidewall of the bottom plate, 5：Top plate, 6：Middle Guan Liang, 7：Center pillar, 8：Inner support, 91：Vertical muscle, 92：Reinforcing bar, 93：Linked network reinforcing bar, 94：
Bottom plate dowel.
Embodiment
In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real
Applying example, the present invention is described in further detail.
Embodiment one
Present embodiment discloses a kind of campshed box culvert structure, is single-hole box culvert structure.
As seen in figures 3-5, the single-hole box culvert structure of the present embodiment include side column campshed 1, high-pressure rotary jet grouting pile 2, side Guan Liang 3,
U-shaped bottom plate 4 and top plate 5.Side column campshed 1 is divided to for two groups, is symmetrically laid in both sides, is set between the campshed of side column two-by-two 1 per side
High-pressure rotary jet grouting pile 2 forms water-stop curtain.Side column campshed 1 includes long poured pile 11 and short poured pile 12, between two root long poured piles 11
Two short poured pile 12 is laid, weathered rock formation or the supporting course with enough anchorage lengths, play support during long poured pile 11 is embedded in
The effect of total；The height of short poured pile 12 is more than the depth of U-shaped bottom plate 4, and its main function is earth-retaining, meets foundation ditch branch
Shield requires；Double pipe rotary churning pile can be selected in high-pressure rotary jet grouting pile 2, and it passes through bottom plate and mud bottom, plays sealing effect, with full
The requirement of foot hole bottom Resistant heave.Side Guan Liang 3 is provided with two, respectively above two groups of side column campsheds 1.
With reference to shown in Fig. 6, U-shaped bottom plate 4 is cast between two groups of side column campsheds 1, U-shaped sidewall of the bottom plate 41 and side column campshed 1
Inwall connects, and the top of side Guan Liang 3 pours integrally with top plate 5.Because U-shaped bottom plate 4 does not contact with top plate 5, U-shaped sidewall of the bottom plate 41
Stress greatly reduce, therefore the thickness of U-shaped sidewall of the bottom plate 41 be less than or equal to U-shaped bottom plate 4 bottom thickness half.
The bottom of top plate 5 is arch, and the thickness of slab of top plate 5 and the junction of side Guan Liang 3 is more than the thickness of slab of remainder.
With reference to shown in Fig. 7~8, the inside of side column campshed 1 itself is provided with vertical muscle 91, and the inside of U-shaped bottom plate 4 is provided with reinforcing bar 92, U-shaped
Sidewall of the bottom plate 41 and bottom are provided with linked network reinforcing bar 93 and bottom plate dowel 94 with the junction of side column campshed 1, and side Guan Liang 3 connects with top plate 5
Meet place and be provided with stirrup（Not shown in figure）.
The construction procedure of the present embodiment is as follows：
(1), side column campshed 1 is constructed：Levelling of the land, line setting, side column campshed 1 are divided to for two groups, put down along Parallel to the flow direction
Row be laid on the position of foundation ditch, high-pressure rotary jet grouting pile 2 take in batches jump hole apply, between each two side column campshed 1 set one
High-pressure rotary jet grouting pile 2 forms water-stop curtain.
(2), Guan Liang is constructed：The top of side column campshed 1 is cut, is located on same plane, is excavated to the bottom of side Guan Liang 3,
Carry out side Guan Liang 3 to construct, side Guan Liang 3 is located above side column campshed, and the expansion joint arrangement of side Guan Liang 3 is consistent with top plate 5, side Guan Liang
The reserved stirrup in 3 tops.
(3), inner support 8 is constructed：Between side Guan Liang 3 some inner supports 8 are laid along perpendicular to water (flow) direction.
(4), excavation of foundation pit：Below excavation pit to the elevation of U-shaped bottom plate 4.
(5), U-shaped bottom plate 4 pours：Determine the position of U-shaped bottom plate 4, the delivery position bar planting of side column campshed 1 and U-shaped bottom plate 4
（Linked network reinforcing bar 93 and bottom plate dowel 94）, concrete bed course is first poured in bottom plate position, the bottom for then carrying out U-shaped bottom plate 4 pours, clearly
Except the silt soil between side column campshed 1, do template using side column campshed 1 and pour U-shaped sidewall of the bottom plate 41.
(6), top plate 5 pours：Place roof plate template, on side, Guan Liang 3 and roof plate template top pour top plate 5, make top plate 5 with
Side Guan Liang 3 forms entirety.
(7) roof plate template, is removed, removes inner support 8, backfills earthing.
Embodiment two
Present embodiment discloses a kind of campshed box culvert structure, the across footpath of box culvert is 9 × 8.8 × 9m, clear height 5.2m, is always about
81m, box culvert bottom silt depth about 20m, box culvert top plate elevation about 4.3m, Pavement Design elevation 8m, box culvert bottom plate crest level-
2.5m.As needed, the present embodiment sets three holes, is three hole box culvert structures.
As shown in figure 9, three hole box culvert structures include side column campshed 1, center pillar 7, high-pressure rotary jet grouting pile 2, side Guan Liang 3, middle Guan Liang
6th, U-shaped bottom plate 4 and top plate 5.
As shown in Figure 11~12, side column campshed 1 is divided to for two groups, is symmetrically laid in both sides, per side the campshed of side column two-by-two 1 it
Between set high-pressure rotary jet grouting pile 2 to form water-stop curtain, side column campshed 1 includes long poured pile 11（φ1200mm@4800mm）With short filling
Stanchion 12（φ1200mm@1600mm）, 2 short poured pile 12 is laid between two root long poured piles 11, long poured pile 11 is embedded in apoplexy
Change rock stratum or the supporting course with enough anchorage lengths, the height of short poured pile 12 is more than the depth of U-shaped bottom plate 4, high-pressure rotary-spray
Double pipe rotary churning pile can be selected in stake 2, and it passes through bottom plate and mud bottom.
Two groups of center pillars 7 are between two groups of side column campsheds 1 and parallel with side column campshed 1, and center pillar 7 is also poured pile（φ
1200mm@4800mm）.Side Guan Liang 3 is provided with two, respectively above two groups of side column campsheds 1.Middle Guan Liang 6 is provided with two, respectively
Above two groups of center pillars 7.U-shaped bottom plate 4 is cast between two groups of side column campsheds 1, in U-shaped sidewall of the bottom plate 41 and side column campshed 1
Wall connects, and side Guan Liang 3, the top of middle Guan Liang 6 and top plate 5 pour integrally.The thickness of U-shaped sidewall of the bottom plate 41 is U-shaped bottom plate 4
The half of bottom thickness, U-shaped 41 thick 30cm of sidewall of the bottom plate, the bottom thickness 60cm of U-shaped bottom plate 4 in the present embodiment.
The bottom of top plate 5 is arch, and using arc-shaped transition, bearing capacity is strong, handsome in appearance.
Such as Fig. 7~8, with embodiment one, the inside of side column campshed 1 itself is provided with vertical muscle 91, and the inside of U-shaped bottom plate 4 is provided with steel
Muscle, U-shaped sidewall of the bottom plate 41 and bottom are provided with linked network reinforcing bar 93 and bottom plate dowel 94, side Guan Liang 3 and top with the junction of side column campshed 1
The junction of plate 5 is provided with stirrup.As Figure 13~14 show, U-shaped bottom plate 4 also is provided with bottom plate dowel 94 with the junction of center pillar 7.
The construction procedure of the present embodiment is as follows：
(1), side column campshed 1 is constructed：Levelling of the land, line setting, side column campshed 1 are divided to for two groups, put down along Parallel to the flow direction
Row is laid on the position of foundation ditch, and weathered rock formation about 1m during long poured pile 11 is embedded in, most deep bottom elevation reaches -42m, long poured pile 11
Between the two short poured pile 12 of arrangement, the elevation of short poured pile 12 be -15m, high-pressure rotary jet grouting pile 2 take in batches jump hole apply, every two
A high-pressure rotary jet grouting pile 2 is set to form water-stop curtain between individual side column campshed 1, high-pressure rotary jet grouting pile 2 passes through mud bottom elevation -20m.
(2), center pillar 7 is constructed：Two groups of center pillars 7 are arranged according to the across footpath demand of box culvert, two groups of center pillars 7 are arranged in parallel in two groups
Between side column campshed 1.
(3), Guan Liang is constructed：The top of side column campshed 1 and center pillar 7 is cut, is located on same plane, is excavated to Guan Liang
Bottom, carries out side Guan Liang 3 and middle Guan Liang 6 is constructed, and the height of side Guan Liang 3 and middle Guan Liang 6 is 1m, and side Guan Liang 3 is located on side column campshed 1
Side, middle Guan Liang 6 are located above center pillar 7, and the expansion joint arrangement of side Guan Liang 3 and middle Guan Liang 6 is consistent with top plate 5, side Guan Liang 3 and middle hat
The reserved stirrup in the top of beam 6.
(4), inner support 8 is constructed：As shown in Figure 10, if being laid between side Guan Liang 3 and middle Guan Liang 6 along perpendicular to water (flow) direction
Dry inner support 8.Inner support 8 uses φ 600mm wall thickness 16mm steel pipe stulls, and Parallel to the flow direction spacing 4.8m arranges one of stull.
(5), excavation of foundation pit：Excavation pit is to elevation -3.2m.
(6), U-shaped bottom plate 4 pours：The position of U-shaped bottom plate 4 is determined, in the friendship of side column campshed 1 and center pillar 7 and U-shaped bottom plate 4
Connect position bar planting (such as Fig. 7,8,13,14）.10cm thickness C15 concrete bed courses are first poured in bottom plate position, then carry out U-shaped bottom plate 4
Bottom pours, and removes the silt soil between side column campshed 1, does template using side column campshed 1 and pour U-shaped sidewall of the bottom plate 41.
(7), top plate 5 pours：Roof plate template is placed, roof plate template is domed.Guan Liang 3, middle Guan Liang 6 and roof plate template on side
Top pours top plate 5, and top plate 5 is 1.3m with the thickness of slab at side Guan Liang 3, middle Guan Liang phase 6 company, and the thickness in plate center is 0.8m, is poured
Build rear top plate 5 and form entirety with side Guan Liang 3 and middle Guan Liang 6.
(8) roof plate template, is removed, removes inner support 8, backfills earthing.
To sum up, filled load is transmitted to Guan Liang 6 in side Guan Liang 3/ by top plate 5 at the top of campshed box culvert of the present invention, then passes again
Give the center pillar 7 of side column campshed 1/, U-shaped bottom plate 4 is connected with the center pillar 7 of side column campshed 1/, and box culvert bottom stress greatly reduces, box culvert bottom without
Other basement process is needed, box culvert bottom differential settlement is effectively solved the problems, such as, enhances the globality of box culvert, suitably push away
Wide application.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.
Claims (4)
1. the construction method of campshed box culvert structure, the campshed box culvert structure includes side column campshed, high-pressure rotary jet grouting pile, side Guan Liang, U-shaped
Bottom plate, top plate, some groups of center pillars and Guan Liang in several, described side column campshed are divided into two groups, are symmetrically laid in both sides, per side
The campshed of side column two-by-two between set high-pressure rotary jet grouting pile formed water-stop curtain, described side Guan Liang be provided with two, respectively positioned at two
Above group side column campshed, described U-shaped bottom plate is cast between two groups of side column campsheds, U-shaped sidewall of the bottom plate and side column campshed inwall
Connection, described side Guan Liang top and top plate pour integrally, some groups of described center pillars be located between two groups of side column campsheds and
Parallel with side column campshed, Guan Liang is respectively arranged on above some groups of center pillars in several described, described middle Guan Liang top and top
Plate pours integrally；It is characterised in that it includes following steps,
S1. side column campshed is constructed：Levelling of the land, line setting, side column campshed are divided into two groups, are laid in along Parallel to the flow direction is parallel
On the position of foundation ditch, high-pressure rotary jet grouting pile take in batches jump hole apply, between each two side column campshed set a high-pressure rotary jet grouting pile
Form water-stop curtain；
S2. center pillar is constructed：Center pillar is arranged according to the across footpath demand of box culvert, center pillar uses poured pile, and center pillar is arranged in parallel in two groups
Between side column campshed；
S3. Guan Liang is constructed：The laitance at the top of side column campshed and center pillar is cut, is located on same plane, is excavated to Guan Liang bottom,
Carry out side Guan Liang and the construction of middle Guan Liang, side Guan Liang are located above side column campshed, middle Guan Liang is located above center pillar, side Guan Liang and middle hat
The expansion joint arrangement of beam is consistent with top plate, reserved stirrup above side Guan Liang and middle Guan Liang；
S4. inner support is constructed：Between side Guan Liang and middle Guan Liang some inner supports are laid along perpendicular to water (flow) direction；
S5. excavation of foundation pit：Below excavation pit to U-shaped floor elevation；
S6.U type bottom slab concretings：The position of U-shaped bottom plate is determined, in the delivery position bar planting of side column campshed and center pillar and bottom plate,
Bottom plate position first pours concrete bed course, and the bottom for then carrying out U-shaped bottom plate pours, and removes the silt soil between side column campshed, utilizes side
Post campshed is cooked template and pours U-shaped sidewall of the bottom plate；
S7. top plate pours：Roof plate template is placed, Guan Liang, middle Guan Liang and roof plate template top pour top plate on side, make top plate and side
Guan Liang and middle Guan Liang form entirety；
S8. roof plate template is removed, removes inner support, backfills earthing.
2. the construction method of campshed box culvert structure as claimed in claim 1, it is characterised in that side column campshed includes in step S1
Long poured pile and short poured pile, lay 2 short poured piles between two root long poured piles, it is described it is long fill in post insertion weathered rock formation or
Into the supporting course with enough anchorage lengths, described short poured pile is used for earth-retaining, and the height of short poured pile is more than U-shaped bottom plate
Depth, described high-pressure rotary jet grouting pile passes through bottom plate and mud bottom.
3. the construction method of campshed box culvert structure as claimed in claim 1, it is characterised in that：In step S6, described concrete pad
Layer is 10~15cm thickness C15 concrete bed courses, and the thickness of described U-shaped sidewall of the bottom plate is less than or equal to the bottom thickness of U-shaped bottom plate
Half.
4. the construction method of campshed box culvert structure as claimed in claim 1, it is characterised in that the top plate mould described in step S7
Plate is domed.
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| CN108708308A (en) * | 2018-05-24 | 2018-10-26 | 中铁二院工程集团有限责任公司 | A kind of expensive soil cutting deep layer discharge structure |
| CN110055929A (en) * | 2019-04-23 | 2019-07-26 | 广东水利电力职业技术学院（广东省水利电力技工学校） | A kind of construction method of Pipeline Crossing Program soft base river levee |
| CN111851328B (en) * | 2020-07-06 | 2021-08-27 | 海门市帕源路桥建设有限公司 | Modular, standardized prefabricating and assembling construction process for box culvert concrete structural steel bars |
| CN114232525A (en) * | 2021-12-30 | 2022-03-25 | 中铁七局集团有限公司 | Construction method for quickly lengthening existing frame culvert in high-speed railway reconstruction and extension |
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| JP2013136922A (en) * | 2011-12-28 | 2013-07-11 | Ohbayashi Corp | Earth retaining wall supporting method, earth retaining wall supporting structure, and underground skeleton constructing method |
| CN202809501U (en) * | 2012-09-05 | 2013-03-20 | 华中科技大学 | Reinforced load reducing structure of motorway high filling culvert in mountainous area |
| CN203144914U (en) * | 2013-03-04 | 2013-08-21 | 中国水电顾问集团华东勘测设计研究院 | Urban canal-bridge-and-culvert structure |
| CN203238642U (en) * | 2013-03-19 | 2013-10-16 | 深圳市工勘岩土工程有限公司 | Supporting retaining wall of foundation pit |
| CN103132465A (en) * | 2013-03-25 | 2013-06-05 | 上海市政工程设计研究总院（集团）有限公司 | Underground box culvert constructing method closely attached to pile foundation bearing platform |
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